17 Feb 2023

On Feb. 13, NASA’s Chandra X-ray Observatory entered safe mode, likely because a sensor that monitors the position of the Sun provided incorrect data. The Chandra team is working toward full recovery of the spacecraft and a return to science observations. NASA will provide more information as it becomes available. Chandra has been operational and exploring the X-ray universe since 1999. To learn more about Chandra’s discoveries, visit https://www.nasa.gov/chandra.